<?php

use yii\db\Schema;
use yii\db\Migration;

class m150609_113547_add_creative extends Migration
{
    public function up()
    {
		$this->addColumn('{{%creative}}', 'ext', "varchar(20) DEFAULT NULL COMMENT '素材后缀' after file_url");
    }

    public function down()
    {
        return true;
    }
}
